Portable typewriter



Dec. 13, 1938. G. PREZIOSO PORTABLE TYPEWRITER Filed July 20, 1935 2Sheets-Sheet l G. PREZiOSO Dec. 13, 1938.

PORTABLE TYPEWRI TER Filed July 20, 1935 2 Sheets-Sheet 2 i illll 1Patented Dec. 13, 1938 PATENT OFFICE 2,140,092 PORTABLE TYPEWRITERGiuseppe Prezioso, Yverdon,

Switzerland, as-

signor to E. Paillard & Cie, S. A., Yverdon,

- Switzerland Application July 20, 1935, Serial No. 32,464 In GermanyJuly 30, 1934 1Claim.

This invention relates to portable typewriters and in particular to thattype in which the base frame is stiffened and rendered more rigid by abase plate firmly attached to said base frame.

5 'It has been proposed to produce a rigid base frame for instance bypressing and drawing sheet metal to form a base plate and the side wallsof the base frame. v

In such known constructions the side parts of the base frame and thebase plate form a rigid structure.

According to the present invention the base plate is removably securedto the side walls of the base frame in such a manner that all the partsof the typewriter needing adjustment are readily accessible.

To render the base frame still more rigid the base plate is providedwith upturned edges. The base plate forms part of the casing of thetype- 2 writer.

The base plate is secured to the side walls of the base frame by meansof screws which are easily accessible and which are used for severalpurposes. For instance the screws may serve 25 as supporting feet onwhich the typewriter rests moreover the screws are used as hinges orfixing elements to secure the cover of the typewriter to the upstandingedges of the base plate. The cover not only protects the typewriteragainst 30 dust etc. but when placed upon the base plate it flts tightlyagainst the upper part of the typewriter so as to secure all the movableparts in their respective positions as for instance the type levers, thepaper platen, the paper carriage, 35 the inking band rollers and so on.

By the particular construction and arrangement of parts, I attain aportable typewriter of but small dimensions, but of an efllciency whichequals or exceeds that of known typewriter of 40 full size.

In the accompanyi g drawings is illustrated in largely diagrammaticmanner, an example of construction.

E18. 1 shows a plan view, 45 Fig. 2 is a perspective view of themachine,

' Fig. 3 shows a section of the machine,

Fig. 4 is a longitudinal section,

Figs. 5 and 6 show how the cover is fixed to the machine.

50 I The frame of the machine shown in the drawings consists of twopieces or parts I and 33 (Figs. 1, 2, 3) which are detachably connectedI and 53 are secured to a common base plate 93,

which is provided with an edge 30, by means of screws 94 and 95.. Thescrews 94 not only hold the machine on the base plate 93 but they serveas feet when the machine is transported in a 15 vertical position. Themultiple use of the screws 94, 95 simplifies the machine.

The cover 91 of the machine fits snugly upon the edge 30 of the baseplate 93 (Figs. 3, 4, 5).

The dimensions of the cover 91 are such that the latter lies tightly onthe cover 92 fixed to the frame and formed of a piece of sheet metal.The inking band rollers 43, the paper carriage, the type levers etc. arethereby secured in their position and any movement of these parts isobviated. The cover is connected to the base plate by the abovementioned screws 94 and 95 and is provided with holes into which thescrews 94 can enter. The heads of the screws 95 which are equallyscrewed to the edge of the base 30 plate are provided with necks. Whenthe cover 91 is placed on the machine these necks come to lie in slotsof said cover. The latter is firmly held by the two hooks 99, which arehinged to the cover and engage over the screws 95 (Figs. 5 and 6). Thecover is provided with a handle 98 by means of which the entire machinecan be carried in one hand.

What I claim is:

In a portable typewriter having an open rectangular base frame, a baseplate having a marginal upturned flange, said open rectangular framefitting snuggly between the front and back marginal flange portions,screws passing through the front and back marginal flange portions intothe adjacent walls-of said frame, a cover over the machine and fittingover said marginal flange, said cover having holes to receive the backscrews aforesaid, slots to receive the front screws aforesaid, andlatches on the cover to engage the front screws aforesaid.

GIUSEPPE PREZIOSO.

